This function visualizes PCA components stored in pca.df and pca.res.
Labels can be optionally added using ggrepel.
Usage
plot_pca(pca.df, pca.res, colorby, label)
Arguments
- pca.df
A data frame containing Dim.1 and Dim.2 columns.
- pca.res
PCA result object with eigenvalues (eig slot).
- colorby
Column name used for coloring.
- label
Column name used for labeling points.